Search for dissertations about: "twin pregnancy"

Showing result 1 - 5 of 23 swedish dissertations containing the words twin pregnancy.

  2. 1. Risk factors and adverse pregnancy outcomes in small-for-gestational-age births

    Author : Britt Clausson; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Obstetrics and gynaecology; Pregnancy; birthweight; fetal growth retardation; small-for-gestational age; maternal anthropometrics; genetic; caffeine; stillbirth; postterm pregnancy; birthweight standard; Obstetrik och kvinnosjukdomar; Obstetrics and women s diseases; Obstetrik och kvinnosjukdomar; Obstetrics and Gynaecology; obstetrik och gynekologi;

    Abstract : The studies were undertaken to evaluate risk factors and outcomes in small-for-gestational-age (SGA) births, in cohort studies using the population-based Swedish Birth, Twin and Education Registers. A cohort study of pregnant women from Uppsala County evaluated the effect on birthweight by caffeine. READ MORE

  4. 2. Genetic factors affecting pregnancy duration in humans

    Author : Jonas Bacelis; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; genomics; GWAS; Mendelian randomization; causal inference; preterm birth; pregnancy; gestation; height; text mining;

    Abstract : This thesis investigates the mechanisms behind human pregnancy duration. Too short gestation is a direct cause of perinatal, neonatal, and infant mortality. Deviation from normal pregnancy length is also associated with a child's morbidity, even in the adulthood. READ MORE

  5. 3. Teenage childbearing : pregnancy outcomes and long-term consequences for the mothers

    Author : Petra Otterblad Olausson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : maternal age; pregnancy in adolescence; pregnancy outcome; infant mortality; infant; premature; risk factors; socioeconomic factors; educational status; single parent; twins; cause of death;

    Abstract : The purposes of the thesis were to study effects of low maternal age on adverse pregnancy outcomes, predictors of teenage childbearing, and long-term effects of teenage motherhood on the women's social situation later in life and risk of premature death. The effects of low maternal age at first birth on risks of adverse pregnancy outcomes, primarily preterm birth and infant mortality, were studied in three population-based cohort studies. READ MORE

  6. 4. Genetic epidemiological studies of adverse pregnancy outcomes and the role of schizophrenia

    Author : Emma Nilsson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Adverse pregnancy outcomes; pre-eclampsia; gestational hypertension; fetal growth restriction; low birth weight; infant death; schizophrenia; genetic and environmental components; epidemiology; twins; families;

    Abstract : The purposes of this thesis were to investigate the importance of genetic and environmental factors in the development of adverse pregnancy outcomes and to investigate the role of schizophrenia as a risk factor for and a consequence of adverse pregnancy outcomes. In the first study we investigated the importance of genetic and environmental factors for pre-eclampsia and gestational hypertension and whether the diseases share genetic etiology. READ MORE

  7. 5. Preeclampsia and other circulatory diseases during pregnancy : etiological aspects and impact on female offspring

    Author : Helena Salonen Ros; Karolinska Institutet; Karolinska Institutet; []
    Keywords : preeclampsia; gestational hypertension; pregnancy-induced hypertension; risk factors; heritability; twin study; venous thrombosis; pulmonary embolism; subarachnoid hemorrhage; intracerebral hemorrhage; intracerebral infarction; stroke; intrauterine exposure;

    Abstract : The aims of this thesis were to investigate and compare environmental effects on the liability of developing preeclampsia and gestational hypertension; to estimate the relative importance of genetic and environmental effects on the liability of developing preeclampsia and gestational hypertension; to assess the effect of childbearing on the risk of circulatory diseases; and to explore the effect of preeclampsia on the female offspring anthropometry in early adulthood. We used the Swedish Birth Register to compare the effect of maternal diabetes, multiple birth, smoking, place of birth and obesity, on the liability of developing preeclampsia and gestational hypertension among 10,666 primiparous women. READ MORE